1 /* $OpenBSD: am335x.c,v 1.12 2020/03/31 10:33:10 kettenis Exp $ */ 2 3 /* 4 * Copyright (c) 2011 Uwe Stuehler <uwe@openbsd.org> 5 * Copyright (c) 2013 Raphael Graf <r@undefined.ch> 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 #include <sys/param.h> 21 #include <machine/bus.h> 22 23 #include <armv7/armv7/armv7var.h> 24 25 #define PRCM_SIZE 0x2000 26 #define PRCM_ADDR 0x44E00000 27 28 #define DMTIMERx_SIZE 0x80 29 #define DMTIMER0_ADDR 0x44E05000 30 #define DMTIMER1_ADDR 0x44E31000 /* 1MS */ 31 #define DMTIMER2_ADDR 0x48040000 32 #define DMTIMER3_ADDR 0x48042000 33 #define DMTIMER4_ADDR 0x48044000 34 #define DMTIMER5_ADDR 0x48046000 35 #define DMTIMER6_ADDR 0x48048000 36 #define DMTIMER7_ADDR 0x4804A000 37 #define DMTIMER0_IRQ 66 38 #define DMTIMER1_IRQ 67 39 #define DMTIMER2_IRQ 68 40 #define DMTIMER3_IRQ 69 41 #define DMTIMER4_IRQ 92 42 #define DMTIMER5_IRQ 93 43 #define DMTIMER6_IRQ 94 44 #define DMTIMER7_IRQ 95 45 46 struct armv7_dev am335x_devs[] = { 47 48 /* 49 * Power, Reset and Clock Manager 50 */ 51 52 { .name = "prcm", 53 .unit = 0, 54 .mem = { { PRCM_ADDR, PRCM_SIZE } }, 55 }, 56 57 /* 58 * General Purpose Timers 59 */ 60 61 { .name = "dmtimer", 62 .unit = 0, 63 .mem = { { DMTIMER2_ADDR, DMTIMERx_SIZE } }, 64 .irq = { DMTIMER2_IRQ } 65 }, 66 67 { .name = "dmtimer", 68 .unit = 1, 69 .mem = { { DMTIMER3_ADDR, DMTIMERx_SIZE } }, 70 .irq = { DMTIMER3_IRQ } 71 }, 72 73 /* Terminator */ 74 { .name = NULL, 75 .unit = 0 76 } 77 }; 78 79 void 80 am335x_init(void) 81 { 82 armv7_set_devs(am335x_devs); 83 } 84